Even more specifically, they have to figure out how to emphasize getting the ball inside to Garcia and JOJ or Payne (when they're able to stay on the court). I'm sure you know this, but there's a considerable difference in value between 2s at the rim and all other 2s. Via T-Rank I looked at the makes/attempts in each category (Close 2s, Far 2s, and 3s); in conference play the Gophers are getting 1.38 points per attempt at the rim (82 makes/119 attempts), 0.83 points per attempt on long 2s (39 makes/94 attempts), and 0.80 points per attempt on 3s (36 makes/135 attempts). So, they are getting almost the same value on long 2 attempts and 3 attempts.
Now, almost all really good teams these days get a good deal more points per shot value on their 3 attempts than their long 2s, but clearly the Gophers are going to have to adjust their emphasis in the process towards increasing their 3 point shot quality - it's not going to happen by just saying "keep letting it rain" like the past two games - and again I would suggest focusing particularly on getting the ball inside to those three guys (Garcia/JOJ/Payne have, as you'd probably guess, over 80% of the current amount of close 2 makes in conference).